diff --git a/dll/win32/rsaenh/rsaenh.spec b/dll/win32/rsaenh/rsaenh.spec
index becbbd4058f..e3ceb02bc0d 100644
--- a/dll/win32/rsaenh/rsaenh.spec
+++ b/dll/win32/rsaenh/rsaenh.spec
@@ -23,5 +23,5 @@
 @ stdcall CPSetProvParam(long long ptr long) RSAENH_CPSetProvParam
 @ stdcall CPSignHash(long long long wstr long ptr ptr) RSAENH_CPSignHash
 @ stdcall CPVerifySignature(long long ptr long long wstr long) RSAENH_CPVerifySignature
-@ stdcall DllRegisterServer()
-@ stdcall DllUnregisterServer()
+@ stdcall -private DllRegisterServer()
+@ stdcall -private DllUnregisterServer()